KevinCraft is a free multiplayer block-building game that runs in your browser. No downloads, no accounts, no game engine — a hand-built voxel renderer, live WebSocket multiplayer, and one persistent world that remembers every block you place.
world online — checking who's in…
See other players walk, build and chat in real time. Open it in two tabs and wave at yourself.
Every block anyone places is saved on the server. Come back next week — your tower's still there.
A full day lasts 10 minutes, and every player sees the same sky. Stars included, free of charge.
Terrain, textures, even the music — all generated by code. There isn't a single image or audio file in the game.
Pick a name, hit Enter the world. That's the whole signup. Click the screen to grab the mouse.
WASD or arrow keys to walk, mouse to look, Space to jump, hold Shift to sprint.
Aim at a block, left-click. It shatters into satisfying little pieces. Bedrock is the one block you can't break — people have tried.
Pick a material with 1–9 or the scroll wheel, then right-click to place it. Whatever you build is saved — forever, for everyone.
Press T, type, hit enter. Chat shows up for every player in the world.
Press P and a teleport link is copied to your clipboard. Anyone who opens it spawns exactly where you were standing — build something, send the link, show it off.
The default. Touch it occasionally.
Honest work.
Load-bearing opinions.
For cottages and questionable bridges.
Renewable. The trees disagree.
The CE signature. Build something that gleams.
Imported from BugHive. The bees are unionized.
Warm near-black. Goes with everything.
It's blocks all the way down.
Chunked meshing with hidden-face culling — only the block faces you can actually see become triangles. One draw call per chunk, directional light baked into vertex colors. Plain Three.js, no engine.
Every client generates an identical world from one shared seed. Only block edits cross the network — a few bytes per change — and the server persists them forever.
Textures are painted pixel-by-pixel onto a canvas at load. Terrain comes from seeded noise. The soundtrack is generative — pentatonic plucks synthesized live with the Web Audio API.
Time-of-day derives from the wall clock, so every player sees the same sunrise without a single sync message. The cheapest multiplayer feature ever shipped.
Free. In your browser. Your friends can be standing next to you in 10 seconds.
▶ Play KevinCraft